Concealed fastening for wall-fixtures.



`\. I. WEISS.

CONCEALED FASTENING FOR WALL FIXTURES.

APPLICATION FILED NOV. 24,19I5.

'v the town' of West Orange,

' UNITED STATES PATENT oEEIcE.

ARTHUR J'. WEISS, 0F WEST ORANGE, NEW JERSEY, A-SSIGNOR T0 EDWARDA. MOCOY,

0F EAST ORANGE, NEW JERSEY. f

Specification' of Letters Patent.

Patented Oct. 16, 1917.

Application led ovember 24, 1915. Serial No. 63,207.

.Toall whom tmag/ concern:

Be -it known that I, ARTHUR` J. WEISS, of

and State of New Jersey, have invented a certain new and useful Improvement in Concealed Fastenings for Wall Fixtures, of which the following is a specification, reference being had to the accompanying drawings, Whieh'form a part of the same.

An object of my invention is toprovide Y means for affixing electric fixtures to a wall,

partition or support in such a manner that the securing means will be concealed, thus doing away` with attaching screws, rivets, nails or other unsightly securing elements.

Another object of my invention is to provide means for securing fixtures to their supports in such manner that they may be `well-known manner,

readily .disengaged for any purpose such as cleaning, repairing or shifting to another connection Without the necessity of disturbing the wiring adapted to connect with said fixtures when -in place.

Other objects of my invention will be apparent hereinafter.

Referring to the drawings:

Figure 1 is a vertical cross section of an electric light fixture embodying my invention; I

Fig. 2` is a back view of the fixture shown in Fig. 1;

Fig. 3 is a detailed sectional view of' my fastenlng element showing also the electrical connection, .asfc such connections are now commonly made;

Fig. 4 isa partial cross section of'Fig. 3 taken along an imaginary line near the top OfFigtS; n f

Fig. 5 is a cross section of my fastening element showing a modification of the electrical connection adapted to be used in connection with myimproved wiring system described in my application for United States Letters Patent Serial No. 84,825, filed June 18th, 1915.

Referring now in detail to the drawings, 1 represents a plate or shield of a fixture, attached to the back of which, either by brazing, welding, casting, or in any other are offsets 2 to which is Ascrewed or'otherwise secured a bridge elementv 3, in which are placed the binding county of Essex,

-panying drawings posts 5, having the projecting connections 6. These connections are adapted to fit into the conducting sleeves 7 and thus make elec- 55 trical connection with the binding posts 8, which may be in the usual way connected with the source of electric supply.

An outlet box 10 is shown having a projection 11 and a threaded stud 12 extending 60 therefrom. Onto this l threaded stud is screwed or otherwise secured, a coupling 13. Thisl coupling is provided with shoulders 14 and a projection 15.

For use in connection with the common method of wiring, this coupling 13 is usually made \of insulating material with the sleeves 7 being made of conducting material and inserted therein as shown. Of course this coupling 13 may be made of conducting 70 material in whichk case the sleeves would be made of insulating material and the projections from the binding posts 5 would be in electrical contact with the binding posts 8. In Fig. 5 I have shown a for use in connection with my n improvedI system of wiring described in my co-pend mg application for United States Letters Patent above referred to. In this case the coupling is made of conducting material while the inserted sleeve 16 is made of mica or other non-conducting material. y In operation my device may be described as consisting of three elements, namely, the

bracket element to the back of which is securely attached the bridge having an opening 17, and in which bridge the wiring is connected as shown, the second element is the coupling 13, and the third element is the projection 12 from the support or outlet box 90 10. In order to place in position a fixture having the connections herein described, the coupling 13, which is preferably screw threaded is screwed onto the threaded projection 12 of the outlet box 10, into its de- 95 sired position. The bracket is then fitted over the outletbox, the projecting ends 6 fit into the sleeves 7, and the projection 15 fits under the bridge 3. The fixture is now 'securely in placefand Ithe electrical connec-100 tions are now made.`

In the above description and the accom- I have shown a prefer# able embodiment of my invention but I do coupling adapted 75 

